“Art should always make you laugh a little and fear a little,” said the 20th-century artist Jean Dubuffet. “Anything but bore.” True to his word, Dubuffet (1901–1985) was always experimenting. He rejected the traditional and trendy in favor of the instinctual and unschooled, and took inspiration from the art of children, prisoners, and the mentally ill, grouping their creations under the term Art Brut. Dubuffet was prolific and left us with more than 10,000 works. This exhibition spans six decades of paintings, sculptures, and assemblages. It focuses on masterpieces and major works on paper, presented in chronological order. —E.C.